Pipe coupling



y w. s. LYNESS 1,916,930

PIPE COUPLING Filed June 30, 1932 Patented July 4,

STAT

l,l6,93ll

PIPE GO'UPEING Application med June 30,

' My invention relates to pipe couplings and is intended fdr securing together pipe sections for various uses such as sewer pipe, water pipe, gas pipe, drain pipe, irrigation pipe, steam pipe, conveying spouts, and conduits. The pipe sections may be made of any suitable material such as steel, cast iron, wrought iron, sheet material, cement, baked clay, brass and aluminum. In carrying out my invention I provide pipe sections each of which has a female member at one end and a male member at the otherend, the female member consisting of an outwardly flanged portion having a cut-out area in the part which is to be placed uppermost or at the top,

and the male member having a circumferential flange adapted to be slid through the cutout area of the'iemale member of and adjacent pipe section. For some purposes "I also provide a complemental member adapted to be set into the cut-out area to complete the female member. ll preferably provide means for firmly securing together the adj acent ends of the pipe sections after the complemental member has been put in to place. For this purpose the complemented member may be provided with a sprue opening through which sealing material is poured, or a securing strip may be placed between the male and female members oi the interfitting ends oi? adjacent pipe sections.

The lull objects and advantages of my invention will appear in connection with the detailed description thereof, and the novel features of my inventive idea will be particularly pointed out in the claims.

in the accompanying drawing, which illnstrates some of the forms in which my invention may be embodied,-

Fig. l is an elevation-all view showing the end portions only oi two adjacent pipe sections in separated condition. Fig. 2 is a, longitudinal sectional view showing the two I sections assembled. Fig. 3 is an elevational view oi a segmental member. Fig. 4 is a view in cross-section on the line t-d of Fig. 6.

Fig. 5 is a view taken on the broken line 55 of Fig. 4. Fig. 6 is a view in longitudinal section showing a seal'which is produced aft- 59 or the coupling has been completely assemtill 1932. Serial no. (820,081.

bled. 7' is a cross sectional view showing a di erent shape for the pipe sections, thisview corresponding to Fig. 4. Fig. 8 is a fragmentary view showing a modified form of securing device. As will be understood from the drawing, ll provide pipe sections 10, one end of each section being provided with a female coupling portion and the other end being provided witha male coupling portion. The female coum pling end is formed with a flanged, outward-Q ly-bulged portion 12 which provides a recess 14 but is cut away at the top, as indicated at 16 for a portion of the circumference and a portion of the width thereof. The male coupling end is provided with a circumferential rib 18 which is adapted to slide down in the space open at the top between the points 16, as will be understood "from Figs. 4 and 5, and to be pushed against the annular seat 20 of the female coupling portion, as will be understood from Fig. 2. The segmental member 22 shown detached in Fig. 3 is adapted to be set in to the cut-away space m of the female coupling portion. The member 22 carries a flange 24, so that this member complements the flanged, outwardly-bulged portion 12. Furthermore, the member 2-2 is provided with a sprue opening 26 through which cement or liquid metal such as molten lead or packing of any kind is poured to fill the annular recess ll. The poured material indicated by the numeral 28 in Fig. 6 provides not only a permanent and complete seal, but a means of holding the two adjacent a ipe ends against possible separation of the jfllnt by contraction caused by cooling of the pipe sections.

hrom the preceding description and from the drawing, it is apparent that the female member comprises an outwardly-positioned circumferential flange 12 concentric with the body portion of the pipe section which provides an internal annular seat 20, and that the flange is extended for a portion of its circumference and this extended portion then turned inwardly whereby an arcuate recess id is provided which mer es into the annular seat, and that the ma e member has an. outwardly-extending circumferential rib is The pine secnons shown Figs. 1-

8 are cyi icai, but it, is obs ions they may me e of L a .57. stance, use;

such case *Le recess S so that space is pro entrance 01 meter into or d pipe sections through 'ihe is pipe sections E claim:

1. in e oipe coupii'ng', s

A section 7 ing s iemai'e member at one end and 2c insie member other, said femeie member comprising an outwnrdly-posi ioned circum- I'erent-iei iionge concentric with the body portion of the pipe section to provide an internal annular seat, said fienge being X- tended for a portion of its circumference and then turned inwardiy whereby an ercuste recess is provided which merges into said annular seat, said male member having an out-wardiy-extending circumferential rib adapted to he slid sidewise through the vacant area in the flange extension of an adjecent'pipe section and then to be pushed iongitudinoily into the annular seat, and means in said recess which secures said rib in said annular seat.

2. In a pipe coupling, a pipe section having a female member at one end and a ma'e member at the other, said femaie member comprising an outwardly-positioned circumferentiei flange concentric with the body portion of the pipe section to provide an internal annular seat said fien ebeins extended for a oortion of its circumference and then turned inwardly whereby an ercuete recess is provided which merges into said annular seat, said male memher having en outwardly-extending circus ferential rib adapted to he slid sidewise through the vacant area in the flange extension of an. adjacent pipe section and then to he pushed longitudinally in' so he annular seat and sealing materiel in said recess which secures said rib in said cnnuisr sees,

36 a pipe coupiing, a pipe section new ing a. femeie member end and e meie member the other said eie member comprising; 3,11.0ll'iZWiZZ(RY-POSYjiGIlQCi circumfercntiei flange concentric Win51 she body portion of the pipe section provide interns annular seat, said Jeing r tended for a portion f circumference and then turned inwerdiy Wherebr an arcuete recess is provided which messes in'bo n O annular sent, said mole mezn outwardly-extending mooted be shci side;

vpi e section then so he pushed i tuning-1H5; into the annular, seat, hie strip said recess which secures said i annular seat.

pipe coupiing, pipe section having 2. female member at, one end and male member st the other end, said ienieie member comprising an oubwerdiypositioned circuniferentiei flange concentric the body portion of the pipe section to provide on internei annular seat, said being extended for e portion of its circumference and then turned inwardly, whereby an ercuate recess is provided which merges into said annular seat, said member having an outwsrdlyeztending circumferential rib adapted he slid sidewise through the ve cent, arcs in the flange extension of en adjecent pipe section and then to be pushed 1ongitudineily into the annular seat, and e segmental member sdapted to be set into recent eree to complete the female member, said segments-,1 member containing an open ing for pouring joint sealing materiel into said recess whereby said rib is secured in said annular sent.

In testimony whereof E hereunto efiix my signature.

W Jaw-"1AM S. LYNESS. 

